The main problems in using Bluetooth devices in a Tesla are
- Tesla only connects to a phone's Bluetooth and thus an external media player bluetooth device can't be connected.
- A second bluetooth device cannot be connected.
So if you need Phone and a separate Bluetooth media player simultaneously, you'll need to route the media player through your phone.
I've done some "research" upon this because I want to connect an XM-Radio via Bluetooth to my Model 3 (when I receive it). I've been investigating a solution right now with my Model S and Model X. The solution that I have come up with is a bit round about, but it basically entails connecting the line-out of the XM-Radio to a USB audio adapter which then connects to my iPhone. The iPhone is paired with the car and an app is run on the iPhone which plays the USB audio. The car then plays the Bluetooth audio of the iPhone.
Here are the pieces you need:
- Griffin iMic USB Audio Device. Takes line-in and provides digitized audio via USB (iMic)
- Apple Lighting to USB Camera Adapter. It provides a USB to Lighting interface and also allows external power so your phone can be powered while the lighting port is in use. (Lightning to USB 3 Camera Adapter)
- A monitoring app that inputs from the USB audio device line-in and outputs to the phone speaker (which is routable to Bluetooth). I've used Garage Band which is overkill, but works in the background.
I've set all this up loosely and hooked it all up and it works. I don't need it for the Model S or Model X because it already has XM-Radio, but when the Model 3 arrives, I'll set up a more permanent installation.